Display device including sound generator and vibration damping member

Abstract

A display device includes: a display panel; a first sound generator disposed on one surface of the display panel, where the first sound generator vibrates the display panel to output a first sound; and a first vibration damping member disposed between the display panel and the first sound generator, where the first vibration damping member reduces a vibration displacement of the display panel.

What is claimed is: 
     
       1. A display device comprising:
 a display panel; 
 a first sound generator disposed on a surface of the display panel, wherein the first sound generator vibrates the display panel to output a first sound; 
 a second sound generator disposed on the surface of the display panel, wherein the second sound generator vibrates the display panel to output a second sound, and wherein the second sound is in a higher frequency band than the first sound; 
 a vibration damping member disposed between the display panel and the first sound generator, wherein the vibration damping member reduces a vibration displacement of the display panel; and 
 a first circuit board overlapping the first sound generator in a thickness direction of the display panel. 
 
     
     
       2. The display device of  claim 1 , wherein the first circuit board overlaps the vibration damping member in the thickness direction of the display panel. 
     
     
       3. The display device of  claim 1 , wherein the first circuit board does not overlap the second sound generator in the thickness direction of the display panel. 
     
     
       4. The display device of  claim 1 , wherein the first circuit board is spaced apart from the second sound generator in plan view. 
     
     
       5. The display device of  claim 1 , further comprising:
 a sound driving circuit electrically connected to the first sound generator and the second sound generator, and disposed on the first circuit board. 
 
     
     
       6. The display device of  claim 5 , wherein the sound driving circuit does not overlap the first sound generator in the thickness direction of the display panel. 
     
     
       7. The display device of  claim 5 , wherein the sound driving circuit does not overlap the vibration damping member in the thickness direction of the display panel. 
     
     
       8. The display device of  claim 1 , further comprising:
 a timing control circuit configured to receive digital video data and timing signals, and generate source control signal based on the timing signals; and 
 a source driving circuit configured to convert digital video data into data voltages based on the source control signal. 
 
     
     
       9. The display device of  claim 8 , wherein the timing control circuit is disposed on the first circuit board. 
     
     
       10. The display device of  claim 9  wherein the timing control circuit does not overlap the first sound generator in the thickness direction of the display panel. 
     
     
       11. The display device of  claim 9 , wherein the timing control circuit does not overlap the vibration damping member in the thickness direction of the display panel. 
     
     
       12. The display device of  claim 8 , further comprising:
 a second circuit board, the source driving circuit disposed on the second circuit board, and 
 wherein the second circuit board overlaps the first sound generator in the thickness direction of the display panel. 
 
     
     
       13. The display device of  claim 12 , wherein the second circuit board overlaps the vibration damping member in the thickness direction of the display panel. 
     
     
       14. A display device comprising:
 a display panel; 
 a first sound generator disposed on a surface of the display panel, wherein the first sound generator vibrates the display panel to output a first sound; 
 a second sound generator disposed on the surface of the display panel, wherein the second sound generator vibrates the display panel to output a second sound; and 
 a vibration damping member disposed between the display panel and the first sound generator and between the display panel and the second sound generator, wherein the vibration damping member reduces a vibration displacement of the display panel. 
 
     
     
       15. The display device of  claim 14 , further comprising:
 a third sound generator disposed on the surface of the display panel, wherein the third sound generator vibrates the display panel to output a third sound, and wherein the third sound is in a higher frequency band than the first sound and the second sound. 
 
     
     
       16. The display device of  claim 15 , wherein the third sound generator is in contact with the surface of the display panel. 
     
     
       17. The display device of  claim 16 , further comprising:
 a heat radiation film disposed on the display panel; and 
 wherein the third sound generator is in contact with the surface of the heat radiation film. 
 
     
     
       18. A display device comprising:
 a display panel; 
 a first sound generator disposed on a surface of the display panel, wherein the first sound generator vibrates the display panel to output a first sound; 
 a second sound generator disposed on the surface of the display panel, wherein the second sound generator vibrates the display panel to output a second sound; 
 a first vibration damping member disposed between the display panel and the first sound generator; and 
 a second vibration damping member disposed between the display panel and the second sound generator, and 
 wherein the first vibration damping member and the second vibration damping member reduce a vibration displacement of the display panel. 
 
     
     
       19. The display device of  claim 18 , further comprising:
 a third sound generator disposed on the surface of the display panel, wherein the third sound generator vibrates the display panel to output a third sound, and wherein the third sound is in a higher frequency band than the first sound and the second sound. 
 
     
     
       20. The display device of  claim 19 , wherein the third sound generator is in contact with the surface of the display panel. 
     
     
       21. The display device of  claim 19 , further comprising:
 a heat radiation film disposed on the display panel; and 
 
       wherein the third sound generator is in contact with the surface of the heat radiation film.